Advances in Engineering Research

To realize unbiased bearing estimates of multiple acoustic sources in a range-independent shallow water, Normal-Mode based MUSIC (NM-MUSIC) method using acoustic vector sensor (AVS) array is proposed in this paper. Comparing to NM-MUSIC method based on scalar array, the method based on AVS array solves...

This paper uses SCM as the control core to design an intelligent flame detection system based on flame sensor R2868. This system consists of 100 flame detection nodes and one hand-held terminal. Each flame detection node includes flame sensor and its driver module, step motor and its driver module, clock...

Ice-melting with short-circuit in transmission line is the most effective methods of de-icing. Conductor would be damaged if rapidly rising conductor temperature exceeds the allowable temperature. Therefore, study on temperature characteristic of conductor in the process of ice-melting ensure effective...

The device controls the rotation of the servo motor by PLC, so as to control to the movement of the feeder device, making a coordination work with paper feeder, paper to transfer machine, box forming machine and the paper fetching machine. This device achieved a highly automation of forming the welding...

The zero-order hold, data-sampling and data-processing of digital controller may cause inevitable control delay in active power filter, which not only affects the harmonic compensation performance, but also causes the instability of active power filter. In order to eliminate the delay effect, a novel...

Probabilistic assessment of power system transient voltage stability is a useful complement to determinate evaluation. The linear boundary of dynamic security region of the controlling unstable equilibrium point was determined on the basis of dynamical system theory. Consequently, power system transient...

This paper regards a kind of AZ80 magnesium alloy extrusion die as the research object to design its shape and make the systematic optimization. The results show that after optimization, the simulated extruding warpage reduced with stable dimension. By comparing the loads of dummy blocks under different...

By means of finite element software ABAQUS, the numerical model of grouting-sleeve reinforcement-connection component under the action of axial load was established. Two kinds of loading system were considered, one was axial tension load with constant loading rate, and another was unidirectional cyclic...

In the past few years, systems biology methods have been widely used to explore the mechanism of cancer. Various signaling pathways play the important role in cancer. And a large number of computational methods are used to model the signaling pathway. Here, we reviewed many existing mechanisms and modeling...

We analyzed how to apply the check-in data to marketing areas by means of the current check-in software based on the theory of Time-Space Path. First, we explored possible marketing modes according to the path in the Time-Space theory and several kinds of interactive ways between people in time-space...

In the actual construction process, civil engineering will have plenty of material to use different materials bear different tasks. With the construction of civil engineering technology to improve and progress, all kinds of new materials continue to be applied to civil engineering construction and the...

Urban planning information assembles multiple source data. According to different criterion, urban planning data have different classification. With the computer technology, 3S, OA and workflow, urban planning multiple source date accordance on different coordinate system, data format, data structure,...

The atmospheric lifetime of CO varies from weeks to months depending on OH radical concentrations. CO itself does not directly contribute to the greenhouse effect, but the reaction of OH radical with CO controls the concentration distribution and variation in space and time of the other greenhouse gases...

The purpose of this study is to investigate the physical properties of mixtures of rice starch and tapioca starch (TS) prepared by extrusion cooking technology. The microstructure analysis suggested that samples presented a looser and more porosity structure as TS content increased. The X-ray diffraction...

Improved PSO algorithms combined with Simulated Annealing are proposed in this paper to solve the problems of the original PSO algorithm. After that three further improvements are proposed respectively from the parameters adjustment, the organization structure and evolution, and the topology structure....

In this paper, based on the TRIZ effect, combined with the working mechanism of the rescue robot, determine the parameters affecting the working performance of the rescue robot. And through the principle of conflict resolution, find the principle of the invention, Trajectory planning for rescue robot,and...

This paper proposes a novel human-computer interactive algorithm to reconstruct fragments from a text document paper. Three types of adjacent information, namely, distances based on (1) border pixels matching, (2) baseline matching and (3) letter templates matching, are proposed. Average of these distances...

Aiming at the problems of every design index weight’s distribution and evaluation of marine shaft system, the analysis of attribute dependability in rough set for calculation and analysis was used in this paper attribute reduction method to remove redundant attributes, retain key information and generate...

Lower limb rehabilitation exoskeletons worn on the outside of the body, which has many features such as wearing comfortable, using safety, efficient rehabilitation training and etc. Structural performance of the exoskeleton determines the overall quality. In the paper, the concepts of the finite element...

Pepper is one of the spices plant and its production countinous decrease caused by converting of the planting areas to tin-mining areas. One of the effort that could be done was the usage of sub-optimal land which has low fertility. The research was aimed to study the effect of soil ameliorant application...

For adapting the global Internet of Things, one of important things is building product lifecycle management (PLM) visualization control platform. The goal of visualization of PLM is to build a information integration platform. The information platform includes all kinds of demand information for all...

When wireless communication technology is applied between Front-end Equipment and Background on expressway, the security is always an important point to be considered. The paper put forward a kind of reliable communication with the PSAM Technology and private communication protocol. The PSAM technology...

In present paper there is the refinement method of the non-rigid shafts turning work meant to be provided. There are foundations to the axial forces control necessity gained. The unit that outfits structured functional scheme of the selfcentering rests (SCR) is presented. The main source of rests work...

Based on the existing terminology in the Chinese science & technology term system of natural disaster monitoring and defense, in this article, fuzzy identification of term relation is conducted by multi-strategy fuzzy comprehension evaluation. First, calculate similarity through various similarity computing...

prehensive measurement on all aspects. The measured data can provide reference for engineering design, so the accuracy of measurement data will have a great impact on the quality of construction. At present, in the engineering survey, people have gradually strengthened the application of digital mapping...

In this work, a modified solvothermal method has been developed to synthesize few layers of tungsten disulfide-nanosheets(WS2-NS). In order to determine the effect of reaction time on the morphology of the product in the preparation of ultrathin tungsten disulfide nanosheets, we prepared samples at different...

In order to describe the failure behavior of sand involving the rotation of principal stress axes, a failure criterion with the method of macro-micro incorporation is employ in this paper. Considering the geometric relationship of loading stress and sand micro fabric, the proposed failure criterion can...

Effect of acid coupled alkaline pretreatment on structure and enzymatic saccharification of sugarcane was investigated. The original and pretreated sugarcane bagasse samples were thoroughly characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and scanning electron...

Chemical injection using Polymer is expected to increase the pressing efficiency and sweeping efficiency so that the oil recovery can increase after the flood of water from the initial oil reserve (OOIP) in the reservoir. This research will carry out the stages of making polymers that are hygroscopic...

Bismuth-doped TiO2 immobilized on kaolinite (Bi-TiO2-K) were prepared via sol-gel method, then calcined at 450oC using kaolinite as the matrix and Bi (NO3)3 as the Bi3+ cationic source. The obtained Bi-TiO2-K photocatalyst were characterized using X-ray diffraction (XRD), infrared absorption spectroscopy,...

Traffic jam, which has been becoming worse in most parts of the world, developed or not, has posed an imminent threat to the quality of urban life. Its main symptom is a slow decline in traffic speeds when contrasted with an uninterrupted flow, which lengthens travel times, increases fuel consumption,...

To address the challenges of carbon emission governance in the aviation industry, this paper proposes a dynamic flight route optimization framework leveraging multi-modal data fusion and causal inference. The framework begins by integrating flight parameters with meteorological data to identify key drivers...

Industrial noise pollution represents a significant conflict between industrial economic development and the health and well-being of residents. To provide new noise reduction strategies for large industrial parks, this study takes a large industrial park as a case example and combines field measurements...

Biogas is a mixture of gases produced from the fermentation process of organic matter derived from animal waste. This research uses a measurement system to monitor conditions in the biogas reactor. Three variations were carried out, namely 1:1:0 (variation 1); 1:1:0.1 (variation 2); 1:0.5:0.2 (variation...

3D printing can be used widely in many fields. With the development of the society, the needs of using 3D printing are growing faster and faster. People can use 3D printing technology to make a new bone to the patients, create something new and fix some damaged items. In recent years, people use 3D printing...

This study constructed a metal coordination self-assembled Mn@BA nanoenzyme and studied its role in antibacterial. The appearance of Mn@BA is manifested as a nanoflower-like structure, and the diameter distribution is mainly concentrated around 920 nm. In the presence of H2O2, Mn@BA exhibits excellent...

This paper studies the heavy medium coal separation model, analyzes the heavy medium separation experiment, fits the distribution curve, and examines the coal separation effect. Through research, it can be seen that the coal preparation accuracy Ep value gradually decreases with the increase of particle...

Climate change is the result of global warming which has a negative impact on people’s life activities. Although research related to smart cities has experienced rapid development in recent years, the relationship between smart cities and climate change has rarely been studied specifically. This research...

Nowadays Biomedical Image Processing is the most developing field and its demand also more in various growth of several applications. Research into these medical technologies has many features and applications. It includes a variety of imaging modalities that can analyze, enhance, and display images...

Study This aim For The aim of writing a research proposal is to produce a product in the form of an application that can manage ship operational cost data according to Ministerial Regulation Number 66 of 2019 and to produce a product in the form of an application that can provide printed results in the...

In the growing interest of creating novel technologies to combat the rise of CO2 in the atmosphere, zeolites have emerged as a sustainable solution for carbon sequestration. Zeolites are aluminosilicate-based material that are highly porous, low cost, and highly stable. This research focuses on the production...

Six kinds of surface composite with different ingredients had been prepared on steel matrix by traditional cast processing. Impact wear properties of the prepared composites had also been studied by dynamic load abrasive wear testing machine with type of MLD-10. Results indicated the following four points....

This paper mainly focuses on the stability of predator-prey model, in which Allee effect is exerted on preys, people's capture of predators and preys in the system, and the demonstration of positive equilibrium point's existence and stability with the help of Routh-Hurwitz stability discriminance. Combining...

With the gradual popularization of china's private higher education , in recent years, how to strengthen party building work and make full use of the function, so as to better promote the development of private colleges and Universities, Further promote social and economic development, It has become...

This paper first discuss the large scale, multi modal and growth of the data, and analyze the application of intelligent data mining in the aspects of computing, effectiveness and high efficiency. This paper analyzes the current situation of development of e-commerce in rural areas, as well as the purpose...

In this paper, the structure and characteristics of the spread code and spread spectrum telemetry signal is ana-lyzed in detail, the design language MATLAB simulation model based on spread spectrum telemetry signals and verify its correctness, for the study of acquisition and tracking algorithm provides...

The operating performances in transportation distance and method of wheel loader have great influence to the efficiency and energy consumption of engineering works. In order to improve economic rationality and scientific of engineering projects effectively, V-shaped shovel cycling conditions of the 50...

The heating process and heat preservation of the specimens in Gleeble thermal simulation test machine were simulated. A coupled electrical-thermal model is established by ABAQUS. The internal temperature distributions of the specimen were analyzed. The uniform temperature zone of the specimen under the...

In order to reveal the rooting mechanism of Dalbergia odorifera.T.Chen, the rooting mechanism of Dendrocalamopsis mongolica was 4,600 mg / L NAA rooting (POD), polyphenol oxidase (PPO), superoxide dismutase (SOD), indole (SOD), indoxylate (SOD), indoxidase Acetic acid oxidase (IAAO) and other root-related...

Comprehensive budget management is refers to the use of budget of enterprise internal departments and units involved a variety of financial and non-financial resources allocation, assessment, control, easy and effective for the production and operation activities of the enterprise organization and coordination,...

Computer network in the information age is undoubtedly an important bearing basis, it has become an important guarantee for the healthy functioning of all walks of life, in this context of computer network security has been the concern of the community. Computer networks in the development process its...

With the coming of “Internet +” era, drops a taxi, Uber and other companies rely on mobile Internet software to establish a taxi service platform, and achieve information exchange between the passengers and the drivers. Aiming at this phenomenon, based on in the history data in a certain period at designated...

Water channel detection has become the focus and difficulty of tunnel detection because of needing a higher resolution. We put forward the array antenna source transient electromagnetic tunnel detection method on the basis of radar array antenna. Firstly, it verifies that the array antenna source has...

Control system design of quadrotor helicopters with accurate actuator modeling is an important practical design problem that many previous works did not consider. In particular, most actuators of such vehicles are brushless motors, which are hardly controlled without accurate dynamical models. In order...

The basic situation of the coal industry production in Shanxi province was studied in this paper, and the transportation of coal in Shanxi province which was divided into the highway freight and the railway freight was studied. Then, the analysis method of synthetic degree of grey incidence was improved...

Many domestic steel structure urban bridges built in the last century have been maintained and strengthened in succession because of reaching their design working life. These old bridges have the triple function of historical culture, human landscape and transportation. The maintenance and reinforcement...

An unsymmetrical photochromic diarylethene, 1-(2-methyl-5-(9-anthracyl)-3-thienyl) -2-[2-methyl-5-(4-n-pentylphenyl)-3-thienyl] perfluorocyclopentene was synthesized at first. Its photochromic and fluorescence properties were investigated in detail. This compound exhibited reversible photochromism, changing...

Processes such as Underground Coal Gasification (UCG), Enhanced Oil Recovery (EOR) and underground disposal of nuclear waste involve the exposure of the surrounding rocks to extreme temperatures. At such high temperatures, the rock suffers substantial structural damage due to the anisotropy in the geotechnical...

In order to fulfil all-position amending of weld seam with wall-climbing robot, a permanent magnet adsorbed repairing end effector (REE) is developed. Cutting tool is installed in atwo-dimensional (2D) cutting force mode to decrease the driving force ofthemanipulator. A permanent magnet adsorption supporting...

The present paper studied on the high-speed traction elevator developed by Dongnan Elevator Co., Ltd. And the seven degrees of freedom differential equations of a high-speed traction elevator are established by the Lagrange approach. The natural frequencies of the elevator system are carried out through...

Based on the application of Electronic Stability Control in commercial vehicles, this paper proposes a control strategy on account of fuzzy PID control algorithm, and designs upper and lower double-layer controllers. The upper controller takes the error and change error of vehicle yaw rate as the input...

Intelligent Transportation Systems (ITS) is an important part of sustainable transportation. Implementation of ITS at large bus terminal is needed in order to increase the service quality to the passenger and encourage people to use public transportation. Unfortunately, not all of large bus terminal...

The article aims to identify the influence of headlight contamination on the stopping distance and allowable speed on roads covered with chemical anti-icing materials at night. Headlight contamination effects were analyzed for determining the maximum allowable vehicle speed on winter roads covered with...

The main carbonate band in Upper Bhuban unit in Bhuban Formation of Surma Group in Mizoram is exposed in an N-S trending hill range about 5 km northeast of Muthi village in Aizawl district. Representative samples from the study area were prepared for rock thin sections and were also analyzed for their...

Plasma chemical modification (PCM) improves chemical resistance of a glazed decorative coating and expands opportunities for designing various types of the decoration of concrete. However, PCM exposes the material to a significant thermal shock that leads to dehydration of hydrosilicates in the cement...

By experimental results for mudstone under the seventh coal seam and sand mudstone of the eighth coal seam in Datun mining area, their uniaxial compression strengths have no relationship with mining depth. Field compression strengths of these strata are not only no more than their experimental strengths,...

This objective to study the effectiveness of Lactobacillus plantarum AK-3 in reducing saponin content in trembesi leaves. Trembesi leaves in fermentation with the addition of Lactobacillus plantarum AK-3 that is isolated from cow milk waste. This research is descriptive so that the data obtained is descriptive...

This article from introduce Feynman's disc paradox, the electromagnetic field energy and momentum conservation, For passive electromagnetic field's momentum flow and mechanical momentum of physical movement electrically charged particles transformation research, Passive electromagnetic field and electromagnetic...

Study a variety of text feature extraction methods, through mutual information(MI), document frequency(DF),information gain(IG) and 2 statistics(CHI) algorithm, using of their respective advantages complementary, proposed a kind of multiple combination feature extraction algorithm based on rough set(RS-MCFEA);First...

The point cloud data for building facade segmentation problem, based on random sampling algorithm is proposed building facade segmentation method, point cloud data, and analyzes the principle and operation process of the algorithm, at the same time, this paper expounds the key parameters in the process...

The Dirichlet-to-Neumann method is adopted to calculate the band gaps of the two-dimensional phononic crystals with different interface conditions. The system is in a square lattice which is composed of the solid cylinders embedded in a softer material. The cross sections of the inclusions are circular....

The progress of modern medical science and technology has put forward higher requirements for the cultivation of medical talents. Under the background of the new era, the ability of scientific research and innovation is a kind of ability that medical students should have. Cultivating the ability of scientific...

At present, the image stitching algorithm based on classical surf features is facing new challenges in the processing of UAV images. In order to improve the efficiency of aerial image stitching, a fast feature extraction and matching algorithm is proposed. At the feature extraction link, a local differential...

Biodiesel is conventionally catalyzed by homogeneous catalyst such as sodium hydroxide or potassium hydroxide, which possesses several disadvantages as they are difficult to separate from biodiesel products and require a multiple neutralization step. Therefore, the usage and development of heterogeneous...

The advent of large language models (LLMs) such as ChatGPT and Google’s Gemini has profoundly reshaped student learning, engagement, and academic practices in the university sector. This research explores students’ deployment of LLMs, their conceptualisations of such tools, efficacy, advantages, and...

The application of nanoparticles has been widely used in the oil and gas industry research activities. In this study, the magnetic molybdenum disulphide (MoS2) was synthesized from molybdenum disulphide. The magnetic MoS2 were then characterized by FTIR, XRD, BET and particle size analyzer. Then, rheometer...

The three-dimensional kitchen waste treatment plant has the characteristics of intensive use of land resources, and has been applied in the new kitchen waste treatment plant in mega cities. But the super large scale of the foundation pit brings challenges to the safe construction of the foundation pit....

This paper investigates the application and performance of concrete-filled steel tubular (CFST) structures in high-rise buildings. By reviewing global research progress and practical applications of CFST structures, it provides an in-depth analysis of their mechanical performance advantages. The study...

To understand the vibration characteristics of the dam body during flood discharge in high arch dams, including the acceleration and amplitude at different parts of the dam, an online vibration monitoring system for flood discharge was designed based on the operational characteristics of a specific double-curvature...

ES920LR is a type of LoRa in Japan, this type of LoRa has a frequency specification of 920 MHz and a range of 3 km at Free Space Path Loss (FSPL), the ES920LR is tested using a Pulse sensor and placed in an arm position to detect heartbeat in humans and send multipoint from the transmitter to several...

The pharmaceutical manufacturing industry in Indonesia is marked with tough competition that requires the relevant parties in this industry to implement integrated management systems. Despite the case, only around 50% of the largest 15 pharmaceutical companies in Indonesia have been implementing this...

For the existing two-way cable network access technology business single, limited bandwidth, weak anti-interference ability and other characteristics, we proposed a Homeplug AV technology which is based on low-frequency EoC. By EoC comparative analysis, we found EoC technology network adaptability, strong...

Uniform silver nanowires (AgNWs) were synthesized by a simple chemical reduction method with a typical diameter of ~200 nm and a typical length of ~6 um, and poly(vinyl alcohol)(PVA) aqueous solution was used to prepare AgNWs/PVA film. This combination shows good nonlinear current-voltage(I-V) characteristic...

For the landslide caused by rainfall, the idea of designing the drainage mechanism with the anchoring system is proposed. The laboratory test has proved that the drainage- anchorage composite structure is feasible. The finite element numerical analysis model is established .The parameters such as the...

Semantic triangle theory is one of the important theories of linguistics. This paper begins with a brief introduction to the connotation of semantic triangle theory, and then analyzes the concrete thinking process of translators in the translation process and the reading process of readers, finally gives...

In order to study the propagation characteristics of the Ka-band mobile satellite channel, the influences of weather impairments (rainfall, clouds, etc.), the multipath fading, and shadowing fading on mobile satellite communication are analyzed and taken into consideration simultaneously. After the corresponding...

Research on the deformation and failure of surrounding rock is very important to the excavation of tunnel, in this paper, based on the geological data and mining conditions of a tunnel engineering using the finite element software FLAC3D to simulate the process of tunnel excavation, and the failure characteristics...

An indirect competitive chemiluminescence enzyme immunoassay (CLEIA) for detecting aflatoxin M1 (AFM1) was developed. In the experimentation, antigen coated concentration, antibody dilution proportion, pH value and ionic concentration of the buffer were optimized to obtain the best reaction condition....

Solar energy as a renewable energy source has the advantages unmatched by other energy sources. It is inexhaustible, and widely distributed, low cost, safe and will not cause any pollution to the environment. Convert solar energy is an important form of utilization of solar energy in the past ten years,...

A study of characteristics and speciation of 7 heavy metals in agricultural soil near mining smelting of Hezhang were analyzed. The heavy metal concentration were determined by using ICP-OES, the chemical fraction concentrations of heavy metal extraction were used a modified BCR-SEPs. Tucker 3 was used...

Soil aggregates content, soil organic carbon (SOC) concentration and density in soil aggregates in 0~5, 5~10, 10~20, 20~30 cm soil layers in peat mire soil in wetland, soybean and paddy field reclaimed from the wetland around Xingkai Lake were determined to investigate how reclamation of wetland for...

As Chinese development of marine resources intensifies in recent years, more and more offshore platforms and buildings, island structures are under construction. However, concrete aggregate and freshwater resources which are used to mix concrete are usually limited in coastal areas or on the islands....

In order to obtain the higher activity DS enzyme through genetic engineering technology. The point mutation method is used to get a higher activity recombinant DS enzyme from Corynebacterium glutamicum. At last the point 183 was mutated from L to Q in LG-322.The mutation type is a fundermental of construct...

The present study aimed to serve as fundamental data for improving user convenience at the initial consulting stage of future extension and remodeling of buildings. In order to analyze the users' degree of satisfaction on existing extended buildings, we analyzed the evaluation characteristics in each...

Nonylphenol plays the role of estrogen in influencing male organisms in water much higher than the female biological. It is typical endocrine disruptors and does harm to biological reproductive system. Gonadotropin-releasing hormone (GnRH) is a sex hormone-containing nerve decape-ptide.The main physiological...

This work is devoted to creation of transport and manipulation robotic system (TMS) to work on the surface of the spacecraft. Undoubtedly, the TMS is a powerful tool in solving problems of the study of space, so it is evident that the role of space robotics is continuously increasing due to the need...

In view of the perspective of public service, the paper analyzed its function and meaning in sports development, explained the current supply situation of public sports development in our country, raised and analyzed the reasons of the supply disparity of urban and rural public sports service, It emphasized...

In view of the problem of AC injecting into DC bus in the substation, the harm of AC injection is described, the characteristics of AC injection are analyzed, the detection technology of AC injection is researched, and the insulation monitoring devices for DC power system is designed. The kind of this...

According to the results of pullout-test for adhesive steel bar in concrete, a bond-slip relationship on adhesive interface is established. This relationship reflects effect of some parameters, such as effective embedment length, drill diameter, characters of anchor adhesive, etc., on bonding strength...

The main objective of this paper is to provide a possible monitoring system, which includes multiple sensors such as fiber optic temperature sensor, gas sensor and differential absorptive methane optic fiber sensor. Optic fiber sensors offer a number of unique advantages for safety monitoring in explosive...